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Finding the Fourth Proportional to 8,894.54, 12,274.37 and 4,915.65

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Solution

The fourth proportional to 8,894.54, 12,274.37 and 4,915.65 is: 6,783.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,894.54 : 12,274.37 = 4,915.65 : x
  2. Step 2: Convert to fraction form
    8,894.54/12,274.37 = 4,915.65/x
  3. Step 3: Cross multiply
    8,894.54x = 12,274.37 × 4,915.65
  4. Step 4: Simplify right side
    8,894.54x = 60,336,482.31
  5. Step 5: Solve for x
    x = 60,336,482.31/8,894.54
  6. Step 6: Final answer
    x = 6,783.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.